Electric switch



May 6, 1930. A. H. FLEET 1,757,709

ELECTRIC SWITCH Filed Feb. 13 1920 Patented May 6, 1939 warren staresmeme PATENT orriica ARTHUR FLEET, OF MILWAUKEE, WISCONSIN, ASSIGNOR, BYMESNE ASSIGNMENTS, TO CUTLER-HAMMER, INC., A CORPORATION OF DELAWAREELECTRIC SWITCH Application filed February 13,1920. Serial No. 358,418.

cord and also having a conductor passage leading from each of saidopeningsto the switch mechanism.

One object of the invention is to provide a switch of the aforesaidcharacter wherein the switch parts and conductor passages are arrangedin the casing to facilitate manufacture, assembly, inspection andwiring.

. Another object is to provide a switch of the aforesaid characterhaving its casing flattened to rest in given positions and having itsoperating member or members arranged for ready accessibility andconvenient opera tion.

Other objects and advantages of the invention will hereinafter appear. aThe accompanying drawing illustrates certain embodiments of the presentinvention which will nowbe described, it'being under.-

stood that the inventionis susceptible of embodiment in other formswithout departing from the scope-of the appended claims.

In the drawing,

Figure 1 is a side view of one form of switch; K I

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1;

Fig. 3 is a view similar to Fig. 1 with one section of the casingremoved;

Fig. 4 is a view similar to Fig. 3 with parts of the switch mechanismremoved;

Fig.5 is a view of a modified form of swtch with one section of itscasing removed; an

Fig. 6 is a sectional view taken on line 6 of Fig. and showing bothsections of the casing.

Referring a snap switch mechanism a of the push but- -p0se stated.

to Figs. 1 to 4, there is illustrated ton type disclosed in Patent No.1,184,104, granted May 23, 1916 to C. J. Klein, saidmechanism beingenclosed in a two-part in sulating casing comprising sections 1) and 0,said casing having a cross section of material- 1y greater length thanbreadth. The casing,

which is preferably formed of molded insulation, is divided along aplane extending lengthwise of its cross section and its sections arerecessed to receive the switch mechanism and its push buttonstherebetween, while the faces of the casing parallel to its plane ofdivision are preferably flattened for the pur- The switch mechanismcomprises a slotted reciprocating member 10 provided with hill andvalley cams 11 and 12, a fixed stud 13 straddled by said member, acontactor 14 oscillatably and slidably mounted'on said stud and providedwith downwardly projecting knobs 15 and 16 engaging said cams and ahelical spring 17 surrounding said stud to I yieldingly hold thecontactor in engagement with the cams. Thei contactor is thus0scilla'ble w1th a snap action upon reciprocation V of the member 11which is provided with push button extremities 18 and 19, said contactorbeing so operable to make and break circuit between stationary contacts20 and 21 secured'to terminals 22 and 23 respectively.

The above described switch parts are all mounted on section a of thecasing, the two sections of said casingbeing recessed to receive saidswitch parts therebetween with the terminals 22 and 23 positionedcentrally of said casing. Also the sections of the casing are recessedalong the plane of division thereof to provide adjacent to the terminalsa chamber 24 to receive circuit wires, said chamber having at oppositeends openings 25 and 26 each to receive a multi-wire cord. Further, thecasing sections have interior abutting portions 27 and 28 locatedbetween the terminals and provided with a passage to receive a screw 29adapted to be threaded into a socket 30 in section 0 to secure thesections together.

The arrangement is such that one wire 31 of a two-wire cord 32 may bepassed through the casing parallel to the axis ofthepush buttons whileanother wire 33 ofthe co'rd I may be severed and its severed ends respecat one side of the movable parts thereof and tively connected toterminals 22 and 23 to include the switch a in series in one side of thecircuit. Also the arrangement and dimensions aresuch that saidconnections may be a direction parallel to said passage, said switchmechanism having terminals mounted between the latter and said passageat points adjacent to said conductor openings.

In witness whereof, I have hereunto subscribed my name.

ARTHUR H. FLEET.

31 will thus tend to relieve strain on said connections.

Referring to Figs: 5-and 6, the switch shown therein is in all essentialrespects identical with the switch above described except that the partsare arranged and proportioned to provide slack in the through wire whilethe casing sections are provided with lugs for reflexing the throughwire to take up the slack therein and afford strain relief for theswitch connections- In this instance the casing section 0 is providedwith two interior lugs 34 and 35 over which the wire is passed while thecasing section b is provided with an interior lug 36 disposed betweenthe lugs 34 and 35 to bear upon and deflect the wire between the latterlugs, as best shown in Fig. 6. Also, the casing section 0 is in thisinstance provided with a lug 37 to deflect the through wire to pass overthe lugs 34 and 35.

electrically continuous conductor through i said casing in a straightline and of another wire the severed ends of which are respectivelyconnected to terminals located inter: mediate said chambers, a snapswitch mechanism positioned within the other of Said chambers,push-buttons extending through. said other pair of alined openings foroperating said mechanism, and abutting portions located intermediatesaid terminals to provide for securement of said sections by a singlefastening means. 2. An electric switch for attachment to cord connectorscomprising a two-part insulating casing of substantially rectangularcontour provided with a passage for an electrically continuousconductor, said passage terminating in openings adjacent to one edge ofsaid casing, each to receive a plurality of wire conductors, and a snapswitch mechanism enclosed within and supported by said casing, andhaving push buttons movable in

